diff --git a/rest-api-spec/src/main/resources/rest-api-spec/test/search/280_unsigned_long.yml b/rest-api-spec/src/main/resources/rest-api-spec/test/search/280_unsigned_long.yml
new file mode 100644
index 0000000000000..4dafae31f23aa
--- /dev/null
+++ b/rest-api-spec/src/main/resources/rest-api-spec/test/search/280_unsigned_long.yml
@@ -0,0 +1,61 @@
+setup:
+  - do:
+      indices.create:
+          index: unsigned_long_sort
+          body:
+            settings:
+              number_of_shards: 3
+              number_of_replicas: 0
+            mappings:
+              properties:
+                field:
+                  type: unsigned_long
+
+---
+"test sorting against unsigned_long only fields":
+  - skip:
+      version:  " - 2.19.99"
+      reason:   "this change is added in 3.0.0"
+
+  - do:
+      bulk:
+        refresh: true
+        body:
+          - '{ "index" : { "_index" : "unsigned_long_sort", "_id" : "1" } }'
+          - '{"field" : [ 13835058055282163712, 1 ] }'
+          - '{ "index" : { "_index" : "unsigned_long_sort", "_id" : "2" } }'
+          - '{"field" : [ 13835058055282163713, 2 ] }'
+          - '{ "index" : { "_index" : "unsigned_long_sort", "_id" : "3" } }'
+          - '{"field" : [ 13835058055282163714, 3 ] }'
+
+  - do:
+      search:
+        index: unsigned_long_sort
+        body:
+          size: 5
+          sort: [{ field: { mode: max, order: desc } } ]
+  - match: {hits.total.value: 3 }
+  - length: {hits.hits: 3 }
+  - match: { hits.hits.0._index: unsigned_long_sort }
+  - match: { hits.hits.0._source.field: [ 13835058055282163714, 3 ] }
+  - match: { hits.hits.0.sort: [ 13835058055282163714 ] }
+  - match: { hits.hits.1._source.field: [ 13835058055282163713, 2 ] }
+  - match: { hits.hits.1.sort: [ 13835058055282163713 ] }
+  - match: { hits.hits.2._source.field: [ 13835058055282163712, 1 ] }
+  - match: { hits.hits.2.sort: [ 13835058055282163712 ] }
+
+  - do:
+      search:
+        index: unsigned_long_sort
+        body:
+          size: 5
+          sort: [{ field: { mode: max, order: asc } } ]
+  - match: {hits.total.value: 3 }
+  - length: {hits.hits: 3 }
+  - match: { hits.hits.0._index: unsigned_long_sort }
+  - match: { hits.hits.0._source.field: [ 13835058055282163712, 1 ] }
+  - match: { hits.hits.0.sort: [ 13835058055282163712 ] }
+  - match: { hits.hits.1._source.field: [ 13835058055282163713, 2 ] }
+  - match: { hits.hits.1.sort: [ 13835058055282163713 ] }
+  - match: { hits.hits.2._source.field: [ 13835058055282163714, 3 ] }
+  - match: { hits.hits.2.sort: [ 13835058055282163714 ] }
diff --git a/rest-api-spec/src/main/resources/rest-api-spec/test/search/290_long.yml b/rest-api-spec/src/main/resources/rest-api-spec/test/search/290_long.yml
new file mode 100644
index 0000000000000..49e79cce88fce
--- /dev/null
+++ b/rest-api-spec/src/main/resources/rest-api-spec/test/search/290_long.yml
@@ -0,0 +1,74 @@
+setup:
+  - do:
+      indices.create:
+          index: long_sort
+          body:
+            settings:
+              number_of_shards: 3
+              number_of_replicas: 0
+            mappings:
+              properties:
+                field:
+                  type: long
+
+---
+"test sorting against long only fields":
+
+  - do:
+      bulk:
+        refresh: true
+        body:
+          - '{ "index" : { "_index" : "long_sort", "_id" : "1" } }'
+          - '{"field" : [ 55282163712, 1 ] }'
+          - '{ "index" : { "_index" : "long_sort", "_id" : "2" } }'
+          - '{"field" : [ 55282163713, 2 ] }'
+          - '{ "index" : { "_index" : "long_sort", "_id" : "3" } }'
+          - '{"field" : [ 55282163714, 3 ] }'
+
+  - do:
+      search:
+        index: long_sort
+        body:
+          size: 5
+          sort: [{ field: { mode: max, order: desc } } ]
+  - match: {hits.total.value: 3 }
+  - length: {hits.hits: 3 }
+  - match: { hits.hits.0._index: long_sort }
+  - match: { hits.hits.0._source.field: [ 55282163714, 3 ] }
+  - match: { hits.hits.0.sort: [ 55282163714 ] }
+  - match: { hits.hits.1._source.field: [ 55282163713, 2 ] }
+  - match: { hits.hits.1.sort: [ 55282163713 ] }
+  - match: { hits.hits.2._source.field: [ 55282163712, 1 ] }
+  - match: { hits.hits.2.sort: [ 55282163712 ] }
+
+  - do:
+      search:
+        index: long_sort
+        body:
+          size: 5
+          sort: [{ field: { mode: min, order: desc } } ]
+  - match: {hits.total.value: 3 }
+  - length: {hits.hits: 3 }
+  - match: { hits.hits.0._index: long_sort }
+  - match: { hits.hits.0._source.field: [ 55282163714, 3 ] }
+  - match: { hits.hits.0.sort: [ 3 ] }
+  - match: { hits.hits.1._source.field: [ 55282163713, 2 ] }
+  - match: { hits.hits.1.sort: [ 2 ] }
+  - match: { hits.hits.2._source.field: [ 55282163712, 1 ] }
+  - match: { hits.hits.2.sort: [ 1 ] }
+
+  - do:
+      search:
+        index: long_sort
+        body:
+          size: 5
+          sort: [{ field: { mode: max, order: asc } } ]
+  - match: {hits.total.value: 3 }
+  - length: {hits.hits: 3 }
+  - match: { hits.hits.0._index: long_sort }
+  - match: { hits.hits.0._source.field: [ 55282163712, 1 ] }
+  - match: { hits.hits.0.sort: [ 55282163712 ] }
+  - match: { hits.hits.1._source.field: [ 55282163713, 2 ] }
+  - match: { hits.hits.1.sort: [ 55282163713 ] }
+  - match: { hits.hits.2._source.field: [ 55282163714, 3 ] }
+  - match: { hits.hits.2.sort: [ 55282163714 ] }